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Say there's an in-universe weapon so odd looking that it is rumored to have been stained by the blood of a "holy" mortal, so much so that no amount of water can wash it away. Is there a chance hu...
This is something I'm thinking about. Now, these would be wings that are not powered by the person themself, since we do not have the strength for it (and I don't want to use legs). They'd be power...
Imagine a supercolony of bees (I'm using bees as a metaphor; they're not really bees) which are the constituents of a massive globe-spanning hive mind. The government wishes to exploit this superco...
Would it be possible for a cilliate, such as Stentor, to evolve into a large multicellular organism similar in form to the original unicellular body-plan?
There are three main languages in this world: Draconic, used by the "old" races, i.e: tengu, dragons, lizardfolk, etc... Abyssal, used by both demons and angels: Initially was a low-level languag...
What possible evolutionary adaptations could you foresee in the sensory organs of wildlife in an environment beset by a nigh-permanent sandstorm? e.g. in the case of vision, ways to protect the ey...
Assuming the axial tilt of the Earth was increased to roughly 30°, and the orbital eccentricity roughly doubled(0.03 as opposed to 0.016) so that the average temperature stayed the same, but the s...
Would the principles at work in the theoretical Alcubierre warp drive apply to a slower-than-light starship? I'm building a setting in which FTL communication and travel is impossible, (due to vio...
I have a planet too far away from its sun for photosynthesis to work well, so the plants use chemosynthesis. But since they don't use sunlight, would they have any reason to grow above ground? Some...
While watching Biblaridion's Alien Biosphere series, an interesting point came up: in Biblaridion's fictional world, atmospheric hydrogen sulfide is used as an energy source for chemosynthetic bact...
In my alien world life has evolved very convergently with life on Earth. Carbon-based lifeforms managed to evolve multicellularity and evolved a lineage of organisms in line with early fish, howeve...
This is yet another "literal worldbuilding" question, as in, building worlds. Inspired, in part, by this question. What if this world is a very long (effectively infinite) hollow cylindrical cavit...
In 1958 the United States Air Force considered a mission to detonate a nuclear device on the surface of the Moon. The endeavour was framed as a booster to American public morale in the wake of the ...
OK, this how it goes for my wyvern (they're called scaled howlers) in my story: my wyvern are not very large, almost the size of a Haast eagle They mate for life, forming strong monogamous pair b...
I'll address storage of antimatter, because that is the one thing in your question humans have done successfully so far. While we may someday build an antimatter-based propulsion device, it's a way...
One way would be to do something similar to how Michael Moorcock ended the world of Melnibone' and the Young Kingdoms at the end of Stormbringer - and in a battle of the gods, it really doesn't mat...
A plant chasing humans would be unrealistic, but I think a plant generating a trap for human-sized animals could be possible in principle, given the right circumstances (maybe it evolved from one e...
Plants would be blue if their photosynthesis were based on phycocyanin instead of chlorophyll. Since there are organisms on earth that use this, it's not entirely implausible that it could be used ...
One disadvantage of airplanes is that they need a runway to start/land. So one thing that would discourage airplanes is a geography where you simply have no space for runways (hills/mountains every...
It is not only possible, apparently it actually exists on earth. The abstract of the linked article reads: Two recently discovered cases of genetic caste determination in social insects might p...
The main problem with antimatter would be containment. You cannot simply put it into a normal container, because the normal container would be made of matter, and the antimatter would annihilate wi...
Here you can use an actual physical field to act as a force field - in certain scenarios. Let's say you want to stop a single particle. What can you do? You can trap it. Not deflect it, in the sens...
I assume you mean the solar day (determined e.g. as the average time between two sunrises). Although you didn't say it, I also assume that you want a planet in the habitable zone (otherwise you've ...
If the planet is tidally locked, the main determining property of the planet will be the heat transport from the warm to the cold side. There are two main heat transport mechanisms: Air currents (w...
Modulation of BBO-Entangled Light Assuming this Video of Entanglement in Action is not incorrectly hiding some additional filter operation, it seems (from the video) that you can quite obviously m...
